CN110275755B - Zero second signal pushing system - Google Patents
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- CN110275755B CN110275755B CN201910611281.7A CN201910611281A CN110275755B CN 110275755 B CN110275755 B CN 110275755B CN 201910611281 A CN201910611281 A CN 201910611281A CN 110275755 B CN110275755 B CN 110275755B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/451—Execution arrangements for user interfaces
- G06F9/452—Remote windowing, e.g. X-Window System, desktop virtualisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
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Abstract
The invention discloses a zero second signal pushing system, which is characterized in that a user pushes signals to display signal pictures, the system comprises at least two display devices forming a display device network, each display device is defined as a node, only one node is a host computer at the same time, the other node is a slave computer, the host computer outputs the first input interface signal to the outside, the slave computer receives the signals output by the host computer and simultaneously outputs the signals of the second input interface, the signal pictures are displayed on the display device, a control module is provided with micro control unit software, the signal format input by the first input interface processed by the algorithm of the micro control unit software is the same as the signal format input by the second input interface, no-sense switching is performed between the signals, when the slave computer needs to output the first input interface signal, the slave computer sends a request to acquire the authority of the host computer through the display device network, the node is switched to the slave computer from the host computer, the host computer does not pass the request, the node is kept unchanged by the host computer, and the pushing time reaches zero second level.
Description
[ field of technology ]
The present invention relates to a signal push technology, and more particularly, to a zero second signal push system.
[ background Art ]
With the development of technology, intelligent conferences become a trend, so that time and cost can be saved. In the case of a joint office or large conference, there is often a need to share a desktop. Most of the current display devices are independently displayed, the DP daisy chain technology only displays DP signals, the HDMI only displays HDMI signals, the VGA only displays VGA signals, and the DP daisy chain technology only has the function of loop-out. However, the DP daisy-chain technology can only loop out in one direction, and cannot meet the requirement that any display device shares a desktop.
Therefore, it is necessary to design a good zero second signal push system to overcome the above-mentioned problems.
[ invention ]
In view of the problems faced by the background technology, the present invention aims to provide a zero second signal pushing system capable of quickly pushing video image signals displayed by any one display device to other display devices in a display network system composed of a plurality of image display devices, and selectively displaying local image signals or image signals pushed by other display devices in the display network system.
In order to achieve the above purpose, the invention adopts the following technical means:
a zero second signal pushing system for pushing signals to display signal pictures includes at least two display devices forming a display device network, each of which is defined as a node, only one node is a host at the same time, the other node is a slave, the host outputs first input interface signals to the outer ring, the slave receives signals from the host and simultaneously loops out signals of a second input interface, signal pictures are displayed on the display devices, each of the display devices has at least one first input interface, one second input interface and one output interface, a control module is installed with micro control unit software, when the display devices are started, a signal input source inputs signals from the first input interface and the second input interface, the first input interface receives video signals generated by the host local signal source, the second input interface receives video signals transmitted by the display device network, and when the first input interface inputs signals in the same format as the second input interface or different from the second input interface, the first input interface decodes signals in the same format, the second input interface decodes signals from the first input interface, the first input interface inputs to the second input interface, the algorithm is the first input interface, the second input interface decodes signals from the first input interface, the second input interface inputs to the first input interface, the algorithm is decoded, the first input interface inputs from the second input interface, the algorithm is decoded, the first input interface inputs are decoded, the signal output by the output interface is switched between the signal input by the first input interface and the signal input by the second input interface in a non-sensing way, when the slave needs to loop out the signal of the first input interface, the slave sends a request to acquire the authority of the host through the display equipment network, the host loops out the signal input by the second input interface through the request, a node is switched from the host to the slave, the control module controls the node to be switched from the slave to the host, the host does not pass through the request, and the node is maintained unchanged by the host.
Further, the user directly switches the signal of the first input interface to the signal input by the second input interface, the display device displays the signal picture of the second input interface, or switches the signal of the second input interface to the signal input by the first input interface, and the display device displays the signal picture of the first input interface.
Further, the signal input source is an HDMI or DisplayPort or VGA or DVI digital signal, the HDMI or DisplayPort or VGA or DVI digital signal inputs signals through the first input interface and/or the second input interface, and the signals are decoded and encoded through the micro control unit software and transmitted to a plurality of display devices.
Further, a serial topology networking mode is adopted between the two display devices, the output interface of the first display device is electrically connected with the second input interface of the second display device, a loop-out signal network forms a closed loop, and a control bus is electrically connected with the two display devices.
Further, a parallel topology networking mode is adopted between the two display devices, a converter is electrically connected with the two display devices, a control bus is electrically connected with the two display devices, the first input interface and the output interface of the display device are electrically connected with the converter, the second input interface and the output interface of the display device are electrically connected with the converter, the converter forms multiple input and multiple output, the control bus is electrically connected with the converter, and the second input interface and the output interface are signal output sources.
Further, the control bus communicates via UART, CAN, I C communication protocol.
Further, the number of the display devices is multiple, and the multiple display devices are in a serial topology networking mode or a parallel topology networking mode.
Compared with the prior art, the invention has the following beneficial effects:
the zero second signal pushing system pushes signals to enable signal pictures to be displayed, the zero second signal pushing system comprises at least two display devices forming a display device network, each display device is defined as a node, only one node is a host at the same time, the other nodes are slaves, the host outputs first input interface signals to an outer ring, the slaves receive signals output by the host and simultaneously loop out signals of a second input interface, signal pictures are displayed on the display devices, each display device is provided with at least one first input interface, one second input interface and one output interface, a control module is provided with micro control unit software, when the display devices are started, a signal input source inputs signals from the first input interface and the second input interface, the first input interface receives video signals generated by the local signal source of the host, the second input interface receives video signals transmitted by the display device network, and when the signals input by the first input interface and the second input interface are in the same format or different from the first input interface, or the second input interface and the second input interface are in the same format, when the control module receives signals from the first input interface and the second input interface, the algorithm is decoded, the first input interface and the second input interface is the first input to the first input interface, the algorithm is decoded, the signal output by the output interface is switched between the signal input by the first input interface and the signal input by the second input interface, when the slave needs to loop out the signal of the first input interface, the slave sends a request to acquire the authority of the host through the display equipment network, the host loops out the signal input by the second input interface through the output interface of the host, the node is switched to the slave by the host, the control module controls the node to be switched to the host by the slave, the host does not pass the request, the node is maintained unchanged by the host, the video image signal displayed by any display equipment can be quickly pushed to other display equipment in the display network system by the display network system formed by a plurality of image display equipment, the display equipment in the display network system can be selected to display the local image signal or the zero second signal push system of the image signal pushed by the other display equipment, any display equipment with the display effect can be pushed to the zero second level, and the display equipment can be pushed to the zero second level.
[ description of the drawings ]
FIG. 1 is a diagram of a network system of a display device in a zero second signal push system according to the present invention;
FIG. 2 is a block diagram of a display device in the zero second signal push system of the present invention;
FIG. 3 is a schematic diagram of a serial topology networking mode in the zero second signal push system of the present invention;
fig. 4 is a schematic diagram of a parallel topology networking mode in the zero second signal push system of the present invention.
[ detailed description ] of the invention
For a better understanding of the invention with objects, structures, features, and effects, the invention will be described further with reference to the drawings and to the detailed description.
Referring to fig. 1 to 3, a zero second signal pushing system is a display signal pushing sharing technology, and zero second refers to that the switching time of the ring-out signal is less than one second. And two or more than two display devices form a display device network system. Any display device on the system can push display signals to other display devices in the system, so that the purpose of displaying desktop sharing is achieved. The method is suitable for any occasion needing to display signal sharing, such as joint office, large-scale conference and the like. Two or more display devices constitute a display device network system. The operating system supports Windows98/2000/XP/Vista/Windows7/Windows10/Android (any version)/Linux. For the display equipment, the display equipment on the network can be increased or reduced at will, the signal switching and pushing time is within 1s, and the sensory design of 0 second is realized.
Referring to fig. 2 to 4, a zero second signal pushing system is shown, a user pushes signals so that signal frames are displayed, the zero second signal pushing system comprises at least two display devices, each display device is defined as a node, only one node at the same time is a host, the host is a Master, the other node is a Slave, the Slave is a Slave, the host outputs a first input interface signal to an outer ring, the Slave receives signals output by the host and simultaneously outputs signals of a second input interface, the signal frames are displayed on the display device, each display device is provided with the first input interface, the second input interface and an output interface, a control module is provided with micro control unit software, when the display device is started, a signal input source inputs signals from the first input interface and the second input interface, the first input interface receives video signals generated by the host local signal source, the second input interface receives video signals transmitted by the display device, the second input interface receives the video signals transmitted by the network, and the first input interface and the second input interface receives signals with the same format or the same algorithm as the first input interface and the second input interface, and the second input interface input unit receives signals with the same format or the same algorithm.
Referring to fig. 2 to fig. 4, when the node is the host, the output interface loops out the signal input by the first input interface, when the node is the slave, the output interface loops out the signal input by the second input interface, the signal looped out by the output interface performs non-inductive switching between the signal input by the first input interface and the signal input by the second input interface, when the slave needs to loop out the first input interface signal, the slave sends a request to obtain the authority of the host through the display device network, the host loops out the signal input by the second input interface through the request, the node is switched from the host to the slave, and the control module controls the node to be switched from the slave to the host, and the host does not pass through the request, and the node is kept unchanged by the host, thereby realizing the requirement of sharing a desktop by any device. The output interface does not generate a change in video signal format when switching between the first input interface and the second input interface. Therefore, the phenomenon that the slave machine firstly blackens and then gets up is avoided, and the zero second pushing effect is achieved.
Referring to fig. 2 to 4, the user directly switches the signal of the first input interface to the signal input by the second input interface, the display device displays the signal frame of the second input interface, or switches the signal of the second input interface to the signal input by the first input interface, and the display device displays the signal frame of the first input interface.
Referring to fig. 2 to 4, the signal input source is an HDMI or DisplayPort or VGA or DVI digital signal, the HDMI or DisplayPort or VGA or DVI digital signal inputs signals through the first input interface and/or the second input interface, and the signals are decoded and encoded by the micro control unit software and transmitted to a plurality of display devices.
Referring to fig. 2 to fig. 4, a serial topology networking mode is adopted between two display devices, the output interface of a first display device is electrically connected with the second input interface of a second display device, a loop-out signal network forms a closed loop, and a control bus is electrically connected with the two display devices. The whole loop-out signal network forms a closed loop and shares a control bus, and the control bus can realize communication through UART, CAN, I C and other communication protocols. The networking mode has simple wiring and is particularly suitable for the occasion that the network node is determined.
Referring to fig. 2 to fig. 4, a parallel topology networking manner is adopted between two display devices, a converter is electrically connected to two display devices, a control bus is electrically connected to two display devices, a first input interface and an output interface of the first display device are electrically connected to the converter, a second input interface and an output interface of the second display device are electrically connected to the converter, the converter forms multiple inputs and multiple outputs, the control bus is electrically connected to the converter, and the second input interface and the output interface are both signal output sources. One of the inputs can be selected as an output source through the control bus, and the networking mode can increase or decrease nodes at will, so that the method is particularly suitable for occasions with uncertain networking node numbers.
Referring to fig. 2 to 4, the zero second signal pushing system includes a network of display devices formed by at least two display devices, each of the display devices is defined as a node, only one node is a host at the same time, the other node is a slave, the host outputs the first input interface signal to the outside, the slave receives the signal output by the host and simultaneously loops out the signal of the second input interface, the signal frame is displayed on the display device, each of the display devices has a first input interface, a first second input interface and a first output interface, a control module is installed with a micro control unit software, when the display device is started, the signal input source inputs the signal from the first input interface and the second input interface, the first input interface receives the video signal generated by the host local signal source, the second input interface receives the video signal transmitted by the network of the display device, and the first input interface and the second input interface and simultaneously loops out the signal in the same format, when the first input interface and the second input interface are in the same format, the control module is a micro control unit software, when the first input interface and the second input interface are in the same format, the algorithm input from the first input interface and the second input interface are decoded, the first input interface and the second input interface are simultaneously input interface and the first input interface and the second input interface, the algorithm input interface is input when the first input interface and the first input interface is decoded, the signal output by the output interface is switched between the signal input by the first input interface and the signal input by the second input interface, when the slave needs to loop out the signal of the first input interface, the slave sends a request to acquire the authority of the host through the display equipment network, the host loops out the signal input by the second input interface through the output interface of the host, the node is switched to the slave by the host, the control module controls the node to be switched to the host by the slave, the host does not pass the request, the node is maintained unchanged by the host, the video image signal displayed by any display equipment can be quickly pushed to other display equipment in the display network system by the display network system formed by a plurality of image display equipment, the display equipment in the display network system can be selected to display the local image signal or the zero second signal push system of the image signal pushed by the other display equipment, any display equipment with the display effect can be pushed to the zero second level, and the display equipment can be pushed to the zero second level.
The above detailed description is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, therefore, all changes that may be made in the equivalent technology using the present specification and illustrations are intended to be included in the scope of the invention.
Claims (7)
1. A zero second signal pushing system, the user pushes the signal, make the signal picture display, characterized by comprising: at least two display devices form a display device network, each display device is defined as a node, only one node is a host at the same time, the other node is a slave, the host outputs a first input interface signal to an outer ring, the slave receives the signal output by the host and simultaneously outputs a signal of a second input interface, a signal picture is displayed on the display device, each display device is provided with at least a first input interface, a second input interface and an output interface, a control module is provided with micro control unit software, when the display device is started, a signal input source inputs signals from the first input interface and the second input interface, the first input interface receives a video signal generated by a local signal source of the host, the second input interface receives the video signal transmitted by the display device network, the signal format input by the first input interface is the same as or different from the signal format input by the second input interface, the algorithm of the micro control unit software initializes the signals input by the first input interface and the signals input by the second input interface, decodes all the signals, and pre-receives the signals, the signal format input by the first input interface and the signal format input by the second input interface after the algorithm of the micro control unit software processes the signals, when the node is the host computer, the output interface loops out the signals input by the first input interface, when the node is the slave computer, the output interface loops out the signals input by the second input interface, the signals looped out by the output interface are switched between the signals input by the first input interface and the signals input by the second input interface in a non-sensing way, when the slave needs to loop out the first input interface signal, the slave sends a request to acquire the authority of the host through the display equipment network, the host loops out the signal input by the second input interface through the output interface of the host, the node is switched to the slave by the host, the control module controls the node to be switched to the host by the slave, the host does not pass the request, the node is maintained unchanged by the host, and the operating system supports Windows98/2000/XP/Vista/Windows7/Windows10/Android (anyversion)/Linux.
2. The zero second signal push system of claim 1, wherein: the user directly switches the signal of the first input interface to the signal input by the second input interface without sense, the display device displays the signal picture of the second input interface, or switches the signal of the second input interface to the signal input by the first input interface without sense, and the display device displays the signal picture of the first input interface.
3. The zero second signal push system of claim 1, wherein: the signal input source is HDMI or DisplayPort or VGA or DVI digital signals, the HDMI or DisplayPort or VGA or DVI digital signals input signals through the first input interface and/or the second input interface, and the signals are decoded and encoded through the micro control unit software and transmitted to a plurality of display devices.
4. The zero second signal push system of claim 1, wherein: the two display devices are connected in a serial topology networking mode, the output interface of the first display device is electrically connected with the second input interface of the second display device, a loop-out signal network forms a closed loop, and a control bus is electrically connected with the two display devices.
5. The zero second signal push system of claim 1, wherein: the two display devices are connected in parallel in a topological networking mode, a converter is electrically connected with the two display devices, a control bus is electrically connected with the two display devices, the first input interface of the display device is electrically connected with the converter, the second input interface of the display device is electrically connected with the output interface of the display device, the converter forms multiple input and multiple output, the control bus is electrically connected with the converter, and the second input interface and the output interface are signal output sources.
6. The zero second signal pushing system according to claim 4 or 5, wherein: the control bus communicates via UART, CAN, I C communication protocol.
7. The zero second signal push system of claim 1, wherein: the display equipment is provided with a plurality of display equipment, and a serial topology networking mode or a parallel topology networking mode is adopted among the plurality of display equipment.
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